This summer saw mercury climb to over 100 degrees in New York City, but even if you thought that was hot, it’s nothing compared to the summer of 1913 in Death Valley. According to the World Meteorological Organization (WMO) and Randy Cerveny, an Arizona State Professor at the School of Geographical Sciences and Urban Planning, the hottest temperature ever recorded was a searing 134 degrees Fahrenheit in Death Valley 99 years ago. But it has only just been recognized as the most extreme temperature ever recorded.

Why has this data only just been revealed now? An international team of meteorologists have just finished an in-depth investigation of another world-record temperature extreme of 58 degrees Celsius (136.4 F) which was recorded on Sept. 13, 1922, in El Azizia, Libya. However the team found that there were enough questions surrounding the measurement and how it was made to conclude that it was probably inaccurate. As such, it has been overturned almost 90 years to the day it was recorded. What this now means is that the “new” hottest temperature ever recorded on the planet is 56.7 C (134 F) on July 10, 1913, at Greenland Ranch in Death Valley, California.

“This is the highest recorded temperature of where people live, so this type of data can help cities that exist in such environments to design buildings that are best suited for these extremes,” Cerveny said. “Knowing the maximum temperatures certain materials must endure leads to better products and designs. That’s why many auto manufactures have test tracks in the hot Mohave desert.

A full list of weather and climate extremes is available at the WMO Archive of Weather and Climate Extremes and includes the world’s highest and lowest temperatures, rainfall, heaviest hailstone, longest dry period, maximum gust of wind, as well as hemispheric weather and climate extremes.